A 10-year-old girl has been left traumatised and with a broken arm after a killer clown attacked her in a park where she was playing with her siblings.
Little Casie Morrison was having a fun day out with her family when a figure emerged from the bushes wearing a terrifying Slender Man mask.
Mum Kirsty, 36, immediately told the child - whom she thinks was carrying a knife - to get lost, and he ran off when some older boys in the park started to chase him.
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The boy, who Kirsty has since found out is only nine-years-old, barged past Casie, who was on her bike at the time.
Poor Casie fell to the ground and suffered painful cuts and grazes - as well as a broken arm.
Furious Kirsty, from Bristol, explained how the boy was trying to terrorise the other children in the park, and that the police have now spoken to the boy.
She said: "It was horrendous. I still can't believe this was a nine-year-old boy. Casie isn't herself - she's very shaken up - and my youngest won't even go to the toilet alone now.
"It has gone over and over in my head what could possess a child of this age to do such a thing and even be able to get hold of a knife in the first place or the outfit.
"It certainly isn't something my children would have access to."
Kirsty was the only adult in the park at the time: "I dread to think what could have happened even if I wasn't in the park with my children.
"Everyone laughed off the silly clown thing last year, but when you are there in that situation, it is terrifying. All your thoughts are to protect your children.
"We were in a public park. Had it been somewhere else, somewhere more secluded, you never know what could have happened."
Kirsty wasn't sure how old the "killer clown" was at the time: "Without a mask on, you would not expect it to be someone so young. It is terrifying to think that someone of that age could be capable of something like that.
"It beggars belief how someone could find doing something like that fun. My girls didn't sleep at all last night because they had been shaken by what happened.
"After this I would really suggest to other parents with young children that they keep an eye on them when they are out and about."
A spokesman for Avon and Somerset Police said: "We received a report relating to a young girl falling off her bike after another child jumped out at her while wearing a mask."
They added that the child has now been spoken to by officers.
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